#include<stdio.h>
int main()
{
	char a = 128;
	//0000 0000 0000 0000 0000 0000 1000 0000 
	//1000 0000 
	char b = -128;
	//1000 0000 0000 0000 0000 0000 1000 0000
	//1000 0000
	printf("%u\n", a);
	printf("%u", b);
	//输出类型转换（整型提升）-	默认char为有符号类型
	//1111 1111 1111 1111 1111 1111 1000 0000
	//4294967168
	//4294967168
	return 0;
}


